Orbital Frontier

The big one

The first multiplayer game of its kind

Rocket-building games with real orbital mechanics have always been played alone. Orbital Frontier is one solar system for everyone: one persistent world, one clock, one server that runs it whether or not anybody is looking.

World · shared

One world, one clock

Every player’s ships share the same solar system and the same real-time clock. It runs while you sleep and while the app is closed. A burn planned for tomorrow happens tomorrow.

Fleet · persistent

Your fleet is real

Every orbit you settle into is written to the world server, not to a save file. Come back on any device and your ship is exactly where physics left it.

Server · authoritative

One referee for everyone

Launches are priced, pad limits checked, contracts judged and achievements paid by the server, never by your phone. Everyone flies under the same rules in the same sky.

Shared solar system Never pauses Real orbits Dock your ships Cross-platform

What you actually do

Build a rocket, fly it, and find out whether the numbers on the hangar card were telling the truth. They were.

Build from parts

69 procedural parts. Two stack diameters, and an adapter that tapers between them; tanks stretch by dragging, fairings must fit what they cover, wings lift on a real airfoil curve. Mass and price come from the shape you draw.

Orbits that are orbits

Every ship is six Keplerian elements and a clock. Patched conics, maneuver nodes, encounters. A ship you leave tumbling is still tumbling when you come back — and the burn you planned for it is still on its forecast, on any device.

Shared, and never paused

One solar system for every player, on one real-time clock nobody can stop. Your capture burn happens at 03:40 whether you are awake or not, so you set a reminder, the phone wakes you, and one tap on it puts you back at that ship's controls.

Meet the Meek

Astronauts, scientists, engineers, tourists. Each has a G-tolerance, blacks out past it, and grows only by coming home. A scientist aboard makes every reading achievement pay more. Move them between the ship's modules in flight — or between two ships, once the two have docked.

Credits, contracts, discovery

Lighting the first stage costs the ship's price. A ship recovered whole refunds what came back. Fly tourists to a different orbit or a different world, and get paid for it — the board always keeps a seat's worth of work on it, and no two offers ask quite the same: every job draws its own height, distance or count, and pays for how hard it came out. Discovery buys the tech tree, and you earn it by measuring places nobody has measured — every biome, every band of air, every world — by flying research contracts that keep coming back, and by reaching named points of interest, from a ten-metre landing back on the pad to a hundred-kilometre canyon on Mars, or by photographing them from orbit with a ground imager parked one world radius up. Short of discovery, the tech tree tells you where the rest of it is.

Dock, undock, rendezvous

Find another of your ships, close the range on thrusters, bring the rings together and they latch on their own — or close a grappling claw on a ship with no ring at all. A joined pair is one plumbing network: pump a tanker's propellant, a battery's charge or a cabin's waste across to the other ship. A stage you drop keeps flying, and it is solid.

By the numbers

What is in the shared world

Counted from the game's own data files on the day this page was built. Every one of them is editable online by the operator, so they only ever go up.

World telemetry · build 0.214.4

69

Parts in 10 categories

29

Worlds: star, 11 planets, 17 moons

48

Tech nodes

180

Achievements

105

Contract templates

64

Campaign missions in 10 chapters

7

Crew roles

Δv ladderSuborbital → orbit → Moon → Mars → beyond

Launch padEarth

Audio files shipped0 · every sound is synthesised

Scale

Kerbin-sized on purpose

Earth is 600 km across the radius, every planet sits at its real distance ratio, and gravity is the real surface gravity. Isp, mass fractions, drag and heat stay inside chemistry's range. The gas giants are the one written-down cheat: a giant's mass without a giant's grip, so their moons are reachable.

Latest release

“Shut Up and Take My Credits, Morty”

Build 37 · Android catches up with build 36, and the Store now sells in-app on Android through Google Play. From build 36: explosions are as big as the propellant they carry: a blast reaches every part near it, joined or not, and its shock wave takes time, so a fast ship can outrun it. The FTS Charge ends a flight on command, the Greenhouse grows the crew’s food, and contracts roll their own figures on every offer.

The loop

A flight, end to end

1

Build in the hangar

Snap parts onto attachment points, mirror the fins, order the stages. The card under the ship tells you its mass, its Δv and what it will cost to light.

2

Light the first stage

That is the moment you pay. The server prices the ship against the catalog, checks your pad can take it, and spends your credits. Standing on the pad is free.

3

Fly it on rails

Burn, coast, plan a node, cross a sphere of influence. Between burns the ship rides its conic exactly, so time warp is a leap and not a guess.

4

Bring it home

Come down under a canopy, on legs, on a heat shield. A ship standing whole on Earth is recovered for the price of what is still aboard, and so is the debris you left lying beside it. A crash refunds nothing.

The hangar with a starter rocket on the pad and the part palette open — Hangar

Liftoff: the rocket climbing past 269 metres with the navball and throttle on screen — Liftoff

The map view showing Earth and the ship's orbit — Map

Live telemetry · Earth · stage 1 active

Throttle100 %

Fuel86 %

Orbit187 m/s · ALT 269 m

Liftoff · +200 cr1 Meek aboard

Twenty-nine worlds, one real shape

The real solar system's layout: the same planets in the same order at the same relative distances, with the same families of moons. The names are the Meeseeks'. Earth, its Moon and Mars keep theirs.

Twostrokes Existence Earth · 1 moon Mars · 2 moons Schmeckle Flurbo Meeseeks Prime · 4 moons The Box · 4 moons Cronenberg · 3 moons Squanch · 2 moons Pluto · 1 moon

Take a pad in the shared world.

It is early, it is free, and it changes most days. Pick your platform, build something, and put it into the same solar system as everyone else.

iPhone & iPadTestFlight AndroidGoogle Play macOSDownload WindowsDownload SteamWishlist

macOS is a direct download — the store links go live with the next build